Pith Number

pith:A6MZWRHU

pith:2009:A6MZWRHUKCTIQ5N7CAGJAVJIR7

not attested not anchored not stored refs pending

Variability of young stars: Determination of rotational periods of weak-line T Tauri stars in the Cepheus-Cassiopeia star-forming region

2), (2) Max Planck Institute for Extraterrestrial Physics, (3) Space Research, A. Koeltzsch (1), Ch. Broeg (3), Ch. Ginski (1), C. Marka (1), Garching, K. Schreyer (1), M.M. Hohle (1, M. Moualla (1), M. Mugrauer (1), M. Vanko (1), Physikalisches Institut, Planetary Sciences, R. Neuh\"auser (1) ((1) Astrophysikalisches Institut und Universit\"ats-Sternwarte Jena, St. Raetz (1), T. Eisenbeiss (1), T.O.B. Schmidt (1), T. Roell (1), University of Bern)

arxiv:0905.1837 v1 · 2009-05-12 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A6MZWRHUKCTIQ5N7CAGJAVJIR7}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:13:45.491839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07999b44f450a68875bf100c9055288ff456e703bf25cc184fe5445c9c4b0ea1

Aliases

arxiv: 0905.1837 · arxiv_version: 0905.1837v1 · doi: 10.48550/arxiv.0905.1837 · pith_short_12: A6MZWRHUKCTI · pith_short_16: A6MZWRHUKCTIQ5N7 · pith_short_8: A6MZWRHU

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/A6MZWRHUKCTIQ5N7CAGJAVJIR7 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 07999b44f450a68875bf100c9055288ff456e703bf25cc184fe5445c9c4b0ea1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08bf3c7d4c16e1544428afd42192fb821ca365e5c93ec5e34aa5400cc22db0ed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-05-12T13:28:41Z",
    "title_canon_sha256": "677bb837970acd4f126f66603191ae8e6f2f6056486751a2763ce0fa8059eb81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1837",
    "kind": "arxiv",
    "version": 1
  }
}